Add-ons for Firefox (en-US)

RECOMMENDED

Raindrop.io

Save and organize anything you find on the web.

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Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.

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Extension Starter Pack

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Privacy & Security

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Productivity extensions

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Recommended extensions

PocketTube: Youtube Subscription Manager
The best way to group your subscriptions Using this simple extension you can create collections that seamlessly fit into YouTube's layout.
Rated 4.2 out of 5
Dima Nabok
20,847 users
YouTube Screenshot Button
Take screenshots from YouTube Videos & YouTube Shorts. The addon adds screenshot button & also enables Shift+A shortcut.
Rated 4.4 out of 5
Ram
18,345 users
Notefox: websites notes
Take notes on every website in a smart and simple way!
Rated 4.4 out of 5
Saverio Morelli (Sav22999)
11,870 users
Augmented Steam
Augments your Steam Experience
Rated 4.6 out of 5
IsThereAnyDeal
61,621 users

Recommended themes

Muted Jade
Rated 5 out of 5
User-jd3rh5
374 users
firefoxbluewhite
Rated 4.5 out of 5
Gonçalves Junior
926 users
Magical aristocracy
Rated 4.7 out of 5
Hasselia
6,349 users

Tab managers

Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
Rated 4.5 out of 5
tlintspr
88,370 users
OneTab
Save up to 95% memory and reduce tab clutter
Rated 4.1 out of 5
OneTab Team
150,248 users
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
Rated 4.6 out of 5
tabliss.io
70,924 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
Rated 4.2 out of 5
sienori
148,204 users

Gaming & media extensions

Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.6 out of 5
Dmitry Selivanov
901,080 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
Rated 4.8 out of 5
Ajay (SponsorBlock)
732,522 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Max RF
484,727 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
Rated 3.8 out of 5
LSD Software
211,030 users

Accessibility extensions

Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Rated 4.5 out of 5
Dark Reader Ltd
1,264,877 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
Rated 3.8 out of 5
LSD Software
211,030 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
Rated 3.2 out of 5
Dark Mode
46,896 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
Rated 4.7 out of 5
mbnuqw
51,298 users

“dark mode” tagged extensions

Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Rated 4.5 out of 5
Dark Reader Ltd
1,264,877 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Max RF
484,727 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube and content selection. Make YouTube tidy and smart! (Layout, Filters, Shortcuts, Playlist)
Rated 4.3 out of 5
code-for-charity
100,815 users
Block Site
A customizable, password-protected website blocker and redirector.
Rated 3.9 out of 5
Ray
69,229 users